contourite mound seismic facies

例句：

1. 1. The studyof these rocks is crucial for understanding thegeological history of the region.
   研究这些岩石对于理解该地区的地质历史至关重要。
2. 2.The contourite mounds are aunique feature of the landscape, providing valuableinsights into the past climate conditions.
   这些沉积岩丘是该景观的独特特征，为了解过去气候条件提供了宝贵的信息。
3. 3.The seismic facies analysis revealedthat the region was once covered in thicklayers of sediment, which has since beeneroded away.
   地震相分析显示，该地区曾经覆盖着厚厚的沉积层，现在已经被侵蚀掉了。